USART's are used for generic serial communication between AVR32 processors and peripherals.
Three USARTs are available on product. The USART1 is connected to external DB9 connectors.
Signal | Description | Peripheral and connectors | Available on GPIO |
---|---|---|---|
U1_RX | Receive serial data | (1),(5) | PA 24 |
U1_TX | Transmit serial data | (1),(5) | PA 23 |
U1_CTS | Clear to send | (1),(5) | PB 4 |
U1_RTS | Request to send | (1),(5) | PB 5 |